The Sauerbraten (Cube 2) engine is an advanced and complete originally open source engine available today, with many novel features unavailable elsewhere. Its main strength is its very productive content pipeline which is especially attractive to smaller companies making casual or serious games. Read more

BrisKola is a version of the the Italian card game Briscola. It uses an Italian pack of 40 cards (numbers from 1 to 7 and the court, without jokers), or a French pack after taking off the cards from 8 to 10 and the jokers.

Card Stories provides a server for a networked guessing game using picture cards. One player (the "author") starts the game by choosing a card, picking a word or a sentence to describe it, and sending out invitations to others to participate.

Generic Collectible Card Game is a multiplayer multiplatform implementation of a card game engine. The card game engine is designed to be of general purpose core for several modules each defining the game specific behaviour.

KardsGT includes a suite of card games that feature network play, solo play, and even a career mode. The computer players will each have their own personalities. The currently available games are Cribbage and War.

Lieutnant sKat is a two player cardgame for Linux/KDE2 according to the rules of the German Offiziersskat. Each player has a set of 16 cards and tries to win more points than his/her opponent. This is done by playing a card, trying to win it and then being able to uncover one of your covered cards.

Mindless Automaton is a virtual tabletop on which you can play card games against other people over a network. It was designed to simulate the Magic the Gathering game, but it can be expanded to simulate other games

QTruco is an implementation of games played with Spanish cards. It currently supports "Truco" and "Casita Robada" games, player vs. computer AI, and player vs. remote player modes, with multiple AIs available for each game. It includes game rules in English and Spanish.

XMille is the classic game of Mille Bourne for X Windows. It is card game against the computer in which each player tries to reach 700 or 1000 miles in a hand. Each player tries to avoid accidents, flat tires, running out of gas, and break downs while trying to cause these same maladies in the opponent. The final object of the game is to be the first team to accumulate a total of 5,000 points in several hands of play.